Which of the following is not a recognized rifle action type?

The answer is correct because "Revolution" is not a recognized type of rifle action. Rifle actions are mechanisms that allow cartridges to be fed into the chamber, discharged, and ejected after firing. Commonly recognized types of rifle actions include:

• Pump: In this action, the shooter manually operates a fore-end to chamber a cartridge.
• Break: This type involves a hinge mechanism that allows the barrel to be opened for loading and unloading.
• Semi-automatic: In this action, each pull of the trigger fires a round and automatically chambers the next round.

"Revolution" does not correspond to any established rifle action and is likely a misinterpretation or confusion with terms commonly associated with other firearms or mechanisms. Understanding the various types of rifle actions is crucial for safe handling and effective operation within the realm of hunting and shooting sports.